Search light

• US 5,228,770 A
• Filed: 09/20/1991
• Issued: 07/20/1993
• Est. Priority Date: 05/12/1989
• Status: Expired due to Term

• Current Assignee: Robert L. Brunson
• Original Assignee: Robert L. Brunson
• Inventors: Brunson, Robert L.
• Primary Examiner(s): Cole, Richard R.
• Application Number:
  US07/763,452
• Time in Patent Office: 669 Days
• Field of Search: 362/188, 362/194, 362/195, 362/261, 362/262, 362/306, 362/288, 362/390
• US Class Current: 362/194
• CPC Class Codes: F21L 2/00 Systems of electric lighting devices systems employing both electric and non-electric light sources or exchangeable light sources F21L27/00
• CPC Class Codes: F21V 15/04 Resilient mountings, e.g. shock absorbers shock absorbing devices of vehicle headlamp housings B60Q1/0491; in general F16F15/04
• CPC Class Codes: F21V 19/02 with provision for adjustment, e.g. for focusing
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508

Abstract

A hand held search light includes a miniaturized electronic control circuit for igniting and operating an arc lamp in the light. A lamp mounting arrangement is disclosed for shock mounting the arc lamp, including arrangement to center and focus the light beam emitted by the search light. The search light is modularized for ease of field maintenance by unskilled personnel.

Claims

1. In a search light, a method of mounting an arc lamp therein comprising the steps of:

(a) providing, on said search light, a lens including a centering means having a recess formed therein for mounting one end of said arc lamp;

(b) installing, on said one end of said arc lamp, a spring biased shock mount having a tip formed thereon for engagement in the recess of said centering means;

(c) engaging the other end of said arc lamp in a lamp socket; and

(d) securing said lens to said search light, while engaging the tip of said spring biased shock mount on said one end of said arc lamp in the recess in said centering means, to thereby shock mount said arc lamp by suspending said arc lamp at opposite ends thereof between suspending said arc lamp at opposite ends thereof between said lens and said lamp socket.

2. In a search light, a method of installing and shock mounting an arc lamp therein comprising the steps of:

(a) providing, on said search light, a lens including a centering means having a recess formed therein;

(b) installing, on a first end of said arc lamp, a first shock mounting means, said first shock mounting means being spring biased and having a tip formed thereon for engagement with the recess in said centering means on said lens;

(c) providing, in said search light, a second shock mounting means having a plurality of resilient contact members formed for engagement with a second end of said arc lamp;

(d) engaging said second end of said arc lamp with said resilient contact members of said second shock mounting means; and

(e) securing said lens to said search light, while engaging the tip of said first shock mounting means in the recess in said centering means, to thereby install said arc lamp in said search light by suspending said arc lamp at opposite ends thereof between said lens and said second shock mounting means.

3. In a search light of the type having an arc lamp therein disposed at opposite ends thereof between a lamp socket and a detachable lens covering said search light, a method of installing said arc lamp in said search light comprising the steps of:

(a) providing a recess formed substantially in the center of said lens;

(b) inserting one end of said arc lamp in said lamp socket to thereby provide a first electrical connection to said arc lamp;

(c) connecting a power lead to the other end of said arc lamp to thereby provide a second electrical connection to said arc lamp;

(d) installing on said other end of said arc lamp a spring biased shock mount adapted for engagement in the recess of said lens; and

(e) securing said lens to said search light while engaging said spring biased shock mount in the recess of said lens, to thereby suspend said arc lamp at opposite ends thereof between said lens and said lamp socket.

4. Apparatus for shock mounting an arc lamp in a search light, comprising:

(a) a housing for containing said arc lamp;

(b) a lens, having a centering means formed therein, detachably mounted on one end of said housing;

(c) a lamp socket, disposed in the other end of said housing, for engagement with one end of said arc lamp; and

(d) a shock mount coupled to the other end of said arc lamp, said shock mount including a tubular spring biased member slidingly engageable with said arc lamp and being adapted to engage said centering means of said lens, when said lens is attached to said housing, to thereby shock mount and suspend said arc lamp between said lamp socket and said lens.

5. The apparatus according to claim 4 wherein said lamp socket has disposed therein a second shock mount comprised of a plurality of resilient electrical contact members formed to enable said arc lamp to swivel in said lamp socket when said one end of said arc lamp is brought into engagement with said plurality of resilient electrical contact members.

6. The apparatus according to claim 4, wherein said centering means has a recess formed therein for receiving a tip, formed on one end of said tubular spring biased member, which engages said centering means.

7. Apparatus for shock mounting an arc lamp in a search light, comprising:

(a) a housing for containing said arc lamp;

(b) a lens, including a centering means having a recess formed therein, detachably mounted on one end of said housing;

(c) a first shock mount, including a tubular spring biased member having a tip formed thereon, slidingly engageable with said arc lamp at a first end thereof; and

(d) a lamp socket, including a second shock mount disposed in said housing at the end opposite said one end of said housing, for engagement with a second end of said arc lamp to thereby shock mount said arc lamp by suspending said arc lamp between said lamp socket and said lens when said lens is attached to said housing with the tip of said first shock mount engaged in the recess of said centering means of said lens.

8. Apparatus for shock mounting an arc lamp in a search light, comprising:

(a) a housing for containing said arc lamp;

(b) a lens, including centering means having a recess formed therein, detachably mounted on one end of said housing;

(c) a first shock mounting means including, a tubular spring biased member slidingly engageable with said arc lamp at a first end of said arc lamp and having a tip formed on one end thereof for engagement in the recess of said centering means;

(d) a lamp socket, including a second shock mounting means disposed in said housing at the end opposite said one end of said housing, for engagement with a second end of said arc lamp to thereby suspend and shock mount said arc lamp at opposite ends thereof between said lens and second shock mounting means when said lens is attached to said housing with the tip of said first shock mounting means engaged in the recess of said centering means.

9. The apparatus according to claim 8 wherein said second shock mounting means comprises a plurality of resilient electrical contact members disposed in said lamp socket and formed to enable said arc lamp to swivel in said lamp socket when said second end of said arc lamp is brought into engagement with said plurality of resilient electrical contact members.

10. The apparatus according to claim 8 wherein said tubular spring biased member of said first shock mounting means comprises, a first cylindrical member attached to said first end of said arc lamp, a second cylindrical member slidingly engageable with said first cylindrical member, said second cylindrical member having a tip formed on one end thereof for engaging the recess in said centering means, and a spring disposed within said first and second cylindrical members, said spring being compressed when said lens is attached to said housing to thereby force said second cylindrical member against said lens and retain the tip on said second member in the recess of said centering means.

11. The apparatus according to claim 10 wherein said first cylindrical member is electrically connected to an electrode inside said arc lamp and adapted for connection to an electrical energy source.

12. Apparatus for mounting an arc lamp in a search light, comprising:

(a) a housing, having a reflector disposed therein, for containing said arc lamp;

(b) a lens, including centering means, detachably mounted on one end of said housing and serving to enclose said reflector at the clear aperture end thereof;

(c) a first shock mount coupled to a first end of said arc lamp for engagement with said centering means of said lens; and

(d) a second shock mount disposed in said housing at the end opposite said one end of said housing, said second shock mount including a plurality of resilient contact members disposed therein for receiving a second end of said arc lamp to thereby suspend and shock mount said arc lamp at opposite ends thereof between said lens and said second shock mount when said lens is attached to said housing with said first shock mount engaged with the centering means of said lens.

13. The apparatus according to claim 12 wherein said first shock mount is a tubular spring biased member slidingly engageable with said arc lamp at said first end thereof to keep said arc lamp engaged with said centering means of said lens while exerting pressure along the longitudinal axis of said arc lamp to retain said second end thereof in pressure contact with said second shock mount.