IP Library › Granted Patent US 9,662,961
Granted Patent B2
US 9,662,961 · App. 14/395,414 · Granted May 30, 2017

Heating apparatus

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Quick Facts
Patent No.
US 9,662,961
App. No.
14/395,414
Granted
May 30, 2017
Kind
B2
Abstract

A heating apparatus which is assembled by inserting a columnar heating wire heater 2 into a hole 30 provided in a case 3 , and heats cooling water introduced into the case 3 by the heating wire heater 2 , wherein the heating wire heater 2 is inserted into boss portions 42 and 43 provided in the case 3 , both end portions are supported by O-rings 50 disposed between inner peripheral walls of the boss portions 42 and 43 and an outer peripheral wall of the heating wire heater 2 , a gap 45 for passing the cooling water is formed along an outer peripheral surface of the heating wire heater 2 between the two boss portions 42 and 43 within the case 3 , and a tapered portion 60 and a rounded portion 61 are formed on an end portion on an insertion-direction distal end side of the heating wire heater 2.

Claims (11)

1. A heating apparatus which is assembled by inserting a columnar heating element into a hole provided in a case, and heats a heating medium introduced into the case by the heating element,

wherein the heating element includes a cylindrical tube portion where a tapered portion is formed at least on one end portion, a heating wire provided inside the tube portion, and a bottom plate that seals an end portion on the tapered portion side of the tube portion, the end portion is inserted into a boss portion provided in the case, and is supported by an O-ring disposed between an inner peripheral wall of the boss portion and an outer peripheral wall of the heating element,

a heating medium passage for passing the heating medium is formed along an outer peripheral surface of the heating element on an inner side of the O-ring within the case, and

the bottom plate is arranged on an axially inner side of the tube portion with respect to the tapered portion.

2. The heating apparatus according to claim 1 , wherein the bottom plate is welded to an inner wall of the tube portion to seal the end portion of the tube portion.

3. The heating apparatus according to claim 1 ,

wherein the heating apparatus is mounted on a vehicle, and

the heating medium is cooling water used for an air-conditioning system of the vehicle.

4. The heating apparatus according to claim 2 ,

wherein the heating apparatus is mounted on a vehicle, and

the heating medium is cooling water used for an air-conditioning system of the vehicle.

Assignments (5)
CHANGE OF NAME Recorded Aug 22, 2022
From: SANDEN HOLDINGS CORPORATION
To: SANDEN CORPORATION
Reel/Frame 061296/0529 →
CORRECTIVE ASSIGNMENT TO CORRECT THE TYPOGRAPHICAL ERRORS IN PATENT NOS. 6129293, 7574813, 8238525, 8083454, D545888, D467946, D573242, D487173, AND REMOVE 8750534 PREVIOUSLY RECORDED ON REEL 047208 FRAME 0635. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Apr 27, 2020
From: SANDEN CORPORATION
To: SANDEN HOLDINGS CORPORATION
Reel/Frame 053545/0524 →
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED AT REEL: 038489 FRAME: 0677. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Oct 9, 2018
From: SANDEN CORPORATION
To: SANDEN HOLDINGS CORPORATION
Reel/Frame 047208/0635 →
CHANGE OF NAME Recorded Apr 21, 2016
From: SANDEN CORPORATION
To: SANDEN HOLDINGS CORPORATION
Reel/Frame 038489/0677 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 20, 2014
From: TAKADA, KAZUMASA
To: SANDEN CORPORATION
Reel/Frame 033981/0029 →